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Finding the Fourth Proportional to 424,273.94, 585,624.54 and 279,191.60

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Solution

The fourth proportional to 424,273.94, 585,624.54 and 279,191.60 is: 385,367.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,273.94 : 585,624.54 = 279,191.60 : x
  2. Step 2: Convert to fraction form
    424,273.94/585,624.54 = 279,191.60/x
  3. Step 3: Cross multiply
    424,273.94x = 585,624.54 × 279,191.60
  4. Step 4: Simplify right side
    424,273.94x = 163,501,452,321.86
  5. Step 5: Solve for x
    x = 163,501,452,321.86/424,273.94
  6. Step 6: Final answer
    x = 385,367.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.